Our customer has been using some AD9361-Z7035 SOMs (the ones in the package at the bottom of this picture) & has developed a motherboard into which they plug into & all is good. They've developed their application & FPGA firmware.
Recently they got new SOMs (the ones in the top of this picture - I know to be Rev F). They purchased a small number of them & they all exhibit the same fault:
- They are working fine when plugged to Analogue Device BOB
- They are not powering up when connected to their motherboard.
This raises a few questions. *Please can you confirm the Rev of the SOMs in the lower part of the picture & is there might be some difference in power requirements of the newer revision of SOM?*